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06-17-2021, 06:56 PM
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#1 |
 
Drives: Chevy camaro ss Join Date: Oct 2020
Location: Florida
Posts: 27
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19 camaro ss lt4 fuel issues
Has anyone you know done an LT4 HPFP and LT4 Injectors in a 2019 or 2020 SS yet? I did the upgrade but problem being 1 code that we can't get figured out. Starts to make power then into limp mode it goes.
P00CA fuel pressure regulator solenoid supply voltage control circuit I've exhausted my resources looking for some help, if any can be provided. List of mods: D1x procharger Stage 2 intercooler kit Lt4 hpfp and lt4 injectors Race bypass valves Jms booster pump |
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06-17-2021, 08:50 PM
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#2 |
Drives: 2022 Lt1 A10 Join Date: Nov 2015
Location: clark, mo
Posts: 8,860
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Have you logged your pulls when it goes into limp mode. Sound like your HPFP is not keeping up. Did you do anything on the low side like a DSX low side? If you have logged then you'll never figure it out. Is it fuel, timing (which seems unlikely)?
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2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff
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06-17-2021, 09:22 PM
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#3 |
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Drives: Chevy camaro ss Join Date: Oct 2020
Location: Florida
Posts: 27
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I have a jms booster pump to help with the low side... my tuner have data log, I doubt that it's fuel timing.
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06-17-2021, 09:46 PM
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#4 |
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Drives: 2018 2SS 1LE Join Date: Feb 2021
Location: Bloomington, IL
Posts: 30
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sounds to me like the install of the JMS is not correct, maybe wires connected wrong or a loose connection. Since the code is coming from the FSCM. It goes into limp mode because of not enough fuel pressure when its calling for it.
The JMS has a lot of adjustments to it, make sure they are correct |
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06-17-2021, 09:54 PM
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#5 |
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Drives: Chevy camaro ss Join Date: Oct 2020
Location: Florida
Posts: 27
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@bennett thanks for the input, I still relay it to my tuner.
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06-18-2021, 10:10 AM
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#6 |
          
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,793
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sounds like the voltage is set too high in the JMS. It needs to be kept under 17.2 volts or it will cause issues like this. I wouldn't go higher then 17 volts.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
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06-18-2021, 12:00 PM
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#7 |
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Drives: Chevy camaro ss Join Date: Oct 2020
Location: Florida
Posts: 27
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@kinglt1 the jms has been uninstalled and the problem is still there... but I think my issue more related with this guy https://www.camaro6.com/forums/showthread.php?t=575682
Last edited by Koulmc; 06-18-2021 at 12:28 PM. |
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06-18-2021, 12:29 PM
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#8 |
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Drives: Chevy camaro ss Join Date: Oct 2020
Location: Florida
Posts: 27
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Code isn't from the FPCM the code is from the PCM and related to the high pressure fuel pump
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06-20-2021, 09:26 AM
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#9 |
 
Drives: 2023 ZL1 M6 Join Date: Sep 2018
Location: Pace FL
Posts: 416
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Is the high side pump creating the pressure requested? Has the tune been setup for the LT4 pump and pressure?
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2024 Riverside Blue ZL1 M6
Magnuson 2650R, NW 103, Roto Fab Big Gulp, ARH 2 inch LT's, Stainless Works NPP Signature Forged 20x10.5/20x11.5, BMR springs, BMR Cradle lockout, AAD Billet Control/Trailing arms 2023 Vivid Orange ZL1 M6 - sold 2019 Riverside Blue ZL1 A10 - sold |
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06-20-2021, 10:02 AM
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#10 |
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Drives: Chevy camaro ss Join Date: Oct 2020
Location: Florida
Posts: 27
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Yes the car has been retuned for the hpfp & lt4 injectors.
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06-20-2021, 12:43 PM
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#11 | |
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Drives: 2023 ZL1 M6 Join Date: Sep 2018
Location: Pace FL
Posts: 416
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Quote:
__________________
2024 Riverside Blue ZL1 M6
Magnuson 2650R, NW 103, Roto Fab Big Gulp, ARH 2 inch LT's, Stainless Works NPP Signature Forged 20x10.5/20x11.5, BMR springs, BMR Cradle lockout, AAD Billet Control/Trailing arms 2023 Vivid Orange ZL1 M6 - sold 2019 Riverside Blue ZL1 A10 - sold |
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06-20-2021, 12:45 PM
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#12 |
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Drives: Chevy camaro ss Join Date: Oct 2020
Location: Florida
Posts: 27
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Thanks bro, I will forward this to my tuner.
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